来保持项目向前推进（根据实践经验）。因此，变化是不可避免的，需要在项目的整个生命周期过程中管理和控制变化Voropajev1998p1617。为了确保变更程序是明确和毫不含糊的以及方便施工人员提出要求发生改变，应该建立一个有效的变更控制体系。可以从以下几个方面考虑：a为确保良好的结果，应检测和预测最有可能发生变更的主要因素，应该保证变更必须由合适的人员检查b）一旦被批准，变更应该发生并对此进行监测以检查是否按预期工作c项目的所有变更应该被记录在项目文件资料中Voropajev1998pl85结论本文介绍了控制预算的最佳方法。首先，必须建立一个高效率的监管控制体系；其次，它必须包括影响成本预算目标的主要因素并将它按照重要性排序；第三，项目管理者应该结合不同的科学控制方法以达到项目的成功。
外文翻译之二
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